The SCCA 2.5 Challenge Series was a professional race series open to production-based sedans. It allowed some modifications to both the chassis and the driveline. The rules changed from year to year but for 1971, the year this car debuted, the rules were considered to be the most lenient.
This 1971 Alfa Romeo 1750 GTV was raced by Horst Kwech in the 1971 Trans Am Series and the 1972 2.5 Challenge Series. This car was used as a development/test mule during the early period of 1971 but with 3 races left in the season Horst debuted the car in actual competition and he won the debut race. He also won the final race of that season which earned Alfa Romeo its 3rd Trans Am Championship, but a post race inspection revealed a rules infraction and the championship was given to Datsun. This car is being presented in 1971 livery.
This 1971 Alfa Romeo 1750 GTV competed in the 1971 and 1972 Trans-Am '2.5 Challenge.' It was driven by seasoned Trans-Am pilot Horst Kwech and sponsored by Herb Wetanson of Wetson's Drive-Ins from Long Island, NY. Most famous races for this car were in the latter half of the 1971 season, with Kwech battling the BRE Datsun driven by John Morton; throughout the series, the cars were seldom separated by more than a few seconds. The Afla was victorious in its debut at Watkins Glen and won the 1971 championship on the track at Laguna Seca. Together with driver Kwech, it was subsequently disqualified by the SCCA for carrying too much fuel in what is widely regarded as one of the most exciting contests of the season. This car has been an active racer with SVRA and VSCDA since 1996, driven by owner/'steward' Sam Cummings and tended to by noted Alfa restoration and racing specialist Roman Tucker of Attica, Michigan.
The Alfa Romeo 1750 was introduced in 1967 and offered in a variety of body styles and designs. The 1750 Berlina sedan and 1750 GTV coupes were introduced in 1967 which carried designs by Bertone. Inspiration came from the Giulia cars which used the body shell but had changes to the trim. The coupe version sat on a shorter wheelbase. In 1968 a spider version was introduced. Production continued until 1972 when the 1750 series was replaced by the 2000 series. In total over 100,000 examples were produced during this time.
Power was courtesy of a 1779 cc twin-car four-cylinder engine which produced about 130 horsepower and 140 foot-pounds of torque. The five-speed manual gearbox was all-synchromesh with a hydraulic clutch.
By Daniel Vaughan | Nov 2006
'Every time I see an Alfa Romeo, I tip my hat,' said Henry Ford. A class completely on its own, the Milan based company has produced both auto sport and sports vehicles since 1910.
In 1967 Alfa Romeo produced the 1750/2000; which was a range of Compact executive vehicles offered in a variety of body styles and designs. During this same year the 1750 Berlina sedan and 1750 GTV coupes debuted, carrying designs by Bertone. The Giulia cars used the body shell but had trim changes, which inspired the 1750 design. The 1750 models replaced the Giulia Berlina. The 1750 had a much bigger engine and revised bodywork in comparison to its predecessor. It shared a majority of its parts with other concurrent models in the Alfa Romeo range. In comparison though the 1750 sold less successfully than the Giulia Berlina.
The 1750 coupe was featured on a shorter wheelbase. Power came from the 1779 cc twin-car four-cylinder engine that produced around 130 hp and 140 lb/ft of torque. With a hydraulic clutch the five-speed manual gearbox was all synchromesh. The 1.8 L engine piped out 118 PS with two twin side draught carbs. The 1750 was outfitted with SPICA fuel injection for the United States market. The 1750 range was designed to top the sedan range, right above the 1,300 cc and 1,600 cc version of the Giulia, but in the U.S. the Giulia sedan was removed from the lineup and replaced entirely by the 1750 Berlina.
Sharing many of the same internal panels, the 1750 body shell was designed with a longer wheelbase than the Giulia, but with updated external panels. It featured the same windscreen too. Bertone was responsible for the revision on the 1750, and though it still slightly resembled the Giulia, special care was taken to differentiate the models. The cars distinctive creases were smoothed out and trim changes were made.
The 1750 Berlina was given an experimental three-speed ZF automatic gearbox in 1971 and dubbed the 1750A Berlina. Only 252 units were produced according to official Alfa Romeo records, and very few are thought to have survived today. Some models didn't have the model plate with embossed production date. Unfortunately the automatic gearbox wasn't a good fit with the four-cylinder motor and acceleration was slow while fuel consumption was sky high.
In 1968 the spider version was debuted. In 1972 the 2000 series replaced the 1750 series. More than 100,000 examples were produced during its lifespan. Sources:
By Jessica Donaldson